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• W2894820057 endingPage "e0204361" @default.
• W2894820057 startingPage "e0204361" @default.
• W2894820057 abstract "Previous behavioural studies demonstrate that face caricaturing can provide an effective image enhancement method for improving poor face identity perception in low vision simulations (e.g., age-related macular degeneration, bionic eye). To translate caricaturing usefully to patients, assignment of the multiple face landmark points needed to produce the caricatures needs to be fully automatised. Recent development in computer science allows automatic face landmark detection of 68 points in real time and in multiple viewpoints. However, previous demonstrations of the behavioural effectiveness of caricaturing have used higher-precision caricatures with 147 landmark points per face, assigned by hand. Here, we test the effectiveness of the auto-assigned 68-point caricatures. We also compare this to the hand-assigned 147-point caricatures.We assessed human perception of how different in identity pairs of faces appear, when veridical (uncaricatured), caricatured with 68-points, and caricatured with 147-points. Across two experiments, we tested two types of low-vision images: a simulation of blur, as experienced in macular degeneration (testing two blur levels); and a simulation of the phosphenised images seen in prosthetic vision (at three resolutions).The 68-point caricatures produced significant improvements in identity discrimination relative to veridical. They were approximately 50% as effective as the 147-point caricatures.Realistic translation to patients (e.g., via real time caricaturing with the enhanced signal sent to smart glasses or visual prosthetic) is approaching feasibility. For maximum effectiveness software needs to be able to assign landmark points tracing out all details of feature and face shape, to produce high-precision caricatures." @default.
• W2894820057 created "2018-10-12" @default.
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• W2894820057 date "2018-10-04" @default.
• W2894820057 modified "2023-10-12" @default.
• W2894820057 title "Caricaturing faces to improve identity recognition in low vision simulations: How effective is current-generation automatic assignment of landmark points?" @default.
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• W2894820057 doi "https://doi.org/10.1371/journal.pone.0204361" @default.
• W2894820057 hasPubMedCentralId "https://www.ncbi.nlm.nih.gov/pmc/articles/6171855" @default.
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• W2894820057 hasPublicationYear "2018" @default.
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